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He resumed his studies in Italy under his mentor, Maria de Novara, whom he lived with, and also introduced him to books by Johan Muller and Giovanni Mirandola, which shaped his studies and assisted in his findings regarding our Earths orbits. Also assisted her with annual astrological prognostications for the city and royalty.
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Discovered and studied during this time that our solar system is heliocentric, meaning that the sun is the center of our orbit, and that our earth orbits around it once per year. Wrote notes regarding his findings in "Commentarioulus" during his time studying.
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His book was printed sharing his ideas that our solar system has a heliocentric orbit. Also the year of his death. Shared his main contributions, including the theory that the sun is the center of our solar system, that our Earth orbits the sun one time per year, and also that our Earth has its own axis on which it orbits slowly one full rotation per day. He also presented the main idea that very slow, long term changes in direction of this axis account for the precession of the equinoxes.
